Topics Landscape Changes

The pipe beneath the rocky path

Map Lovers’ Monday: Schuylkill River from Wissahickon Creek to Norristown, 1913

Sandy Run Watershed and the Holmesburg Water Works

Fairmount Park topographical map, showing East Park Reservoir, 1872

Thomas Mill Covered Bridge on the Wissahickon

Thomas Mill Covered Bridge over Wissahickon Creek (Picturesque America)

Plans and maps of the Pennypack Creek Watershed in Philadelphia

Wingohocking Sewer across Penn St.

Wingohocking Sewer across Penn St.

Black-and-white diagram showing streets and the Little Tacony Creek

Frankford Creek Watershed: A historical overview of the Philadelphia section

Frankford Creek Watershed Historical Timeline

Down Under III: A walk in the Dobson’s Run Storm Relief Sewer, June 15, 2010

Dobson FLP

Requiem for a stream: A brief history of Dobson’s Run

Color image of a grassy field with trees and buildings surrounding it and white lines drawn on the grass mimicking the path of a creek.

Drawing Dock Creek